/*
 * This file contains code from "C++ Primer, Fifth Edition", by Stanley B.
 * Lippman, Josee Lajoie, and Barbara E. Moo, and is covered under the
 * copyright and warranty notices given in that book:
 * 
 * "Copyright (c) 2013 by Objectwrite, Inc., Josee Lajoie, and Barbara E. Moo."
 * 
 * 
 * "The authors and publisher have taken care in the preparation of this book,
 * but make no expressed or implied warranty of any kind and assume no
 * responsibility for errors or omissions. No liability is assumed for
 * incidental or consequential damages in connection with or arising out of the
 * use of the information or programs contained herein."
 * 
 * Permission is granted for this code to be used for educational purposes in
 * association with the book, given proper citation if and when posted or
 * reproduced.Any commercial use of this code requires the explicit written
 * permission of the publisher, Addison-Wesley Professional, a division of
 * Pearson Education, Inc. Send your request for permission, stating clearly
 * what code you would like to use, and in what specific way, to the following
 * address: 
 * 
 * 	Pearson Education, Inc.
 * 	Rights and Permissions Department
 * 	One Lake Street
 * 	Upper Saddle River, NJ  07458
 * 	Fax: (201) 236-3290
*/ 

#ifndef SCREEN_H
#define SCREEN_H

#include <string>
class Screen {
public:
    typedef std::string::size_type pos;

    // constructor: build screen of given size containing all blanks
    Screen(pos ht = 0, pos wd = 0): contents(ht * wd, ' '), cursor(0), 
                                    height(ht), width(wd) { }
	friend int main();
	// data is a static member that returns a pointer to member
	static const std::string Screen::*data() 
	    { return &Screen::contents; }
	// other members as before
	char get_cursor() const { return contents[cursor]; }
    char get() const;
    char get(pos ht, pos wd) const;
private:
    std::string contents;
    pos cursor;
    pos height, width;
};
#endif
